Name: Ball Bearing Garrett GT4508R (aka GT45R) Turbo - w/ Custom Housing Options
Brand: Garrett
SKU: PTT-TBO-050
Availability: InStock

The Garrett GT4508R represents the pinnacle of large-frame ball bearing turbo technology, built for enthusiasts chasing serious four-digit horsepower numbers on high-displacement engines. With extensive housing customization available, this turbo is engineered for builders who demand both massive flow capacity and the flexibility to dial in their exact spool and top-end characteristics. This is a turbo for the serious build — not a bolt-on upgrade, but a foundational component for an extreme power platform.

Specifications

Compressor Wheel Inducer: 80.8mm
Compressor Wheel Exducer: 108mm
Compressor Wheel Trim: 56
Compressor Housing A/R: .69
Compressor Inlet: 6″ slip-on connection
Compressor Outlet: 3.5″ slip-on connection
Turbine Housing Inlet: T4 div

Weight	20 lbs
TURBINE HOUSING	Standard, T4 Divided 1.01 A/R, T4 Divided 1.15 A/R, T4 Divided 1.28 A/R, Tial Stainless V-band inlet and outlet housing 1.02 A/R, Tial Stainless V-band inlet and outlet housing 1.16 A/R, Tial Stainless V-band inlet and outlet housing 1.30 A/R
Compact GT42R/RS Compressor Housing Option	Standard, Yes, No
Optional Polished Housing ($95)	Standard, Polished Option
Turbo Model	GT4508R

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Ball Bearing Garrett GT4508R (aka GT45R) Turbo – w/ Custom Housing Options

Specifications

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